<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=804630
-->
<window title="Mozilla Bug 804630"
        xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
  <script type="application/javascript" src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"/>

  <!-- test results are displayed in the html:body -->
  <body xmlns="http://www.w3.org/1999/xhtml">
  <a href="https://bugzilla.mozilla.org/show_bug.cgi?id=804630"
     target="_blank">Mozilla Bug 804630</a>
  </body>

  <!-- test code goes here -->
  <script type="application/javascript">
  <![CDATA[
  /** Test to make sure that COWed objects can expose properties from their prototypes. **/
  const Cu = Components.utils;

  // Set up the sandbox.
  var sb = new Cu.Sandbox('http://www.example.com');
  sb.ok = ok;
  sb.is = is;

  // Make a chrome object that exposes objects off its prototype.
  sb.proto = { read: 42, readWrite: 32, __exposedProps__: {} };
  sb.obj = { __exposedProps__: { read: 'r', readWrite: 'rw' } };
  sb.obj.__proto__ = sb.proto;

  // Make sure we can't access any of the properties on the prototype directly.
  Cu.evalInSandbox('is(proto.read, undefined, "proto.read inaccessible");', sb);
  Cu.evalInSandbox('var wrote = false; ' +
                   'try { proto.readWrite = 12; wrote = true; } catch(e) {} ' +
                   ' ok(!wrote, "Should not write proto property");', sb);

  // Make sure we can access the exposed properties via the derived object.
  Cu.evalInSandbox('is(obj.read, 42, "obj.read accessible");', sb);
  Cu.evalInSandbox('is(obj.readWrite, 32, "obj.readWrite is readable");', sb);
  Cu.evalInSandbox('obj.readWrite = 8; is(obj.readWrite, 8, "obj.readWrite is writable");', sb);

  ]]>
  </script>
</window>
